I am using GeometryReader to calculate the size of font to use to fit several lines of text, however it is always too big. What can be wrong with my calculation?
Here's a simply Playground
import SwiftUI
import PlaygroundSupport
struct MainView : View {
var body: some View {
VStack {
SomeView()
.frame(width: 508.0, height: 246.5)
}
}
}
struct SomeView: View {
let newData = ["1", "2", "3", "4", "5", "6", "7", "8"]
var lines: Int { newData.count }
var body: some View {
GeometryReader { geometry in
VStack(alignment: .leading, spacing: 0) {
ForEach(0..<lines) { idx in
Text(newData[idx])
.padding(0)
}
}
.font(.system(size: geometry.size.height / CGFloat(lines)))
.onAppear {
print(geometry.size)
print(lines)
print(geometry.size.height / CGFloat(lines))
}
}
}
}
PlaygroundPage.current.setLiveView(MainView())
This gives me this result which I need to show all 8 lines:
The GeometryReader correctly reports the height of the box to be 246.5 and the number of lines to be 8 which results in a 30.8125 font size.
It seems the font size needs some additional padding but how do I calculate this?
I want to be able to supply an unknown amount of data and have it fill the box. (Well I am actually using a LazyVGrid which is suffering the same issue).
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